noun Pathology. inflammation of the peritoneum, often accompanied by pain and tenderness in the abdomen, vomiting, constipation, and moderate fever.

What is the meaning of the word peritonitis?

English Language Learners Definition of peritonitis

: a serious condition in which the covering of the stomach, intestines, and nearby organs becomes swollen and infected. See the full definition for peritonitis in the English Language Learners Dictionary.

Where does the word peritonitis come from?

Etymology. The term "peritonitis" comes from Greek περιτόναιον peritonaion "peritoneum, abdominal membrane" and -itis "inflammation".